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Priority to JP9929973UpriorityCriticalpatent/JPS5232625Y2/ja
Priority to US499038Aprioritypatent/US3885740A/en
Publication of JPS5045061UpublicationCriticalpatent/JPS5045061U/ja
Application grantedgrantedCritical
Publication of JPS5232625Y2publicationCriticalpatent/JPS5232625Y2/ja